Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Top Union ElectronicsROCO:6266 -0.20%91 ROE % is 13.45% as of Dec. 2025, which is 16% above its 10-year median of 11.61. GuruFocus rates ROCO:6266 with a GF Score™ of 91/100 and a GF Value™ of NT$30.96 (Modestly Undervalued). The stock has 2 warning signs investors should review. Among 1,002 Semiconductors companies, Top Union Electronics ranks better than 74.15% on this metric.
The historical rank and industry rank for Top Union Electronics's ROE % or its related term are showing as below:
ROCO:6266'
s ROE % Range Over the Past 10 Years
Min: 5.3 Med: 11.61 Max: 17.41
Current: 12.58
During the past 13 years, Top Union Electronics's highest ROE % was 17.41%. The lowest was 5.30%. And the median was 11.61%.
ROCO:6266's ROE % is ranked better than 74.15% of 1002
companies
in the Semiconductors industry
Industry Median: 4.675
vs ROCO:6266: 12.58
Top Union Electronics (ROCO:6266) ROE % Explanation
ROE % measures the rate of return on the ownership interest (shareholder's equity) of the common stock owners. It measures a firm's efficiency at generating profits from every unit of shareholders' equity (also known as net assets or assets minus liabilities). ROE % shows how well a company uses investment funds to generate earnings growth. ROE %s between 15% and 20% are considered desirable.
The factors that affect a company's ROE % can be illustrated with the three-step DuPont Analysis:
Note:
The net income data used here is four times the quarterly (Dec. 2025) net income data. The Revenue data used here is four times the quarterly (Dec. 2025) revenue data. The same rule applies to Pre-Tax Income and Operating Income.
* In the five-step DuPont Analysis, Operating Income is only available for non-financial companies. Thus, for Insurance companies, we use EBIT as a substitution of Operating Income. For Banks, both Operating Income and EBIT is unavailable. Thus we combined Interest Burden and Operating Margin % into Pretax Margin %, and the DuPont Analysis is divided into four components instead.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Be Aware
Net Income is used.
Because a company can increase its ROE % by having more financial leverage, it is important to watch the equity multiplier when investing in high ROE % companies. Like ROA %, ROE % is calculated with only 12 months data. Fluctuations in company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.
Asset light businesses require very few assets to generate very high earnings. Their ROE %s can be extremely high.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the Semiconductor Equipment & Materials subindustry, Top Union Electronics's ROE %, along with its competitors' market caps and ROE % data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Top Union Electronics ROE % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Top Union Electronics's ROE % distribution charts can be found below:
* The bar in red indicates where Top Union Electronics's ROE % falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
In the calculation of annual ROE %, the net income of the last fiscal year and the average total shareholder equity over the fiscal year are used. In calculating the quarterly data,
the net income data used here is four times the quarterly (Dec. 2025) net income data.
ROE % is displayed in the 30-year financial page.
Top Union Electronics (ROCO:6266) has a ROE % of 13.45% as of Dec. 2025. Return on equity is the ratio of current-period net income to average two-period total equity. View historical data on Top Union Electronics and its competitors. This is 16% above median its historical median of 11.61. Over the past decade, Top Union Electronics' ROE % has ranged from 5.30 to 17.41. According to the industry distribution chart, Top Union Electronics ranks #259 out of 1002 companies in the Semiconductors industry, placing it in the top 25.8%.
Is Top Union Electronics' ROE % too high?
Top Union Electronics' current ROE % of 13.45% is 16% above median its 10-year median of 11.61. Over the past 10 years, this metric has ranged from a low of 5.30 to a high of 17.41. The Semiconductors industry median ROE % is 4.68. Top Union Electronics' value of 13.45% is 187.7% above this industry median. Based on the distribution chart, Top Union Electronics ranks #259 out of 1002 companies in the Semiconductors industry, which is above the industry midpoint. Overall, Top Union Electronics has a GF Score™ of 91/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Top Union Electronics' ROE % compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, Top Union Electronics ranks #259 out of 1002 companies for ROE %. This puts Top Union Electronics in the upper half of its industry. The industry median ROE % is 4.68. Top Union Electronics' value of 13.45% is 187.7% above this benchmark. Historically, Top Union Electronics' own ROE % has ranged from 5.30 to 17.41 over the past decade. While the company's 10-year median is 11.61 vs. the industry median of 4.68, Top Union Electronics has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROE % for a Semiconductors company?
The median ROE % among Semiconductors companies is 4.68, based on 1,002 companies in the industry. Companies in the top quartile (top 25%) have a ROE % significantly above this median, while those in the bottom quartile fall well below. However, ROE % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Top Union Electronics's current ROE % of 13.45% is 187.7% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high ROE % mean?
A high ROE % can signal that a stock is expensive relative to its fundamentals. Return on equity is the ratio of current-period net income to average two-period total equity. View historical data on Top Union Electronics and its competitors. For the Semiconductors industry, the median ROE % is 4.68 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Top Union Electronics's current ROE % is 13.45%, which is 16% above median its own 10-year median of 11.61. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Top Union Electronics stock overvalued right now?
Based on GuruFocus' analysis, Top Union Electronics (ROCO:6266) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$30.96, compared to a current price of NT$25.05 — trading 19.1% below its estimated fair value. The current ROE % is 13.45%, which is 16% above median its 10-year median of 11.61 and 187.7% above the Semiconductors industry median of 4.68. Top Union Electronics' overall GF Score™ is 91/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROE % calculated?
ROE % is calculated from a company's financial statements. For Top Union Electronics (ROCO:6266), the current ROE % is 13.45% as of Dec. 2025. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Top Union Electronics (ROCO:6266) Overvalued in 2026?
Based on GuruFocus' analysis, Top Union Electronics stock appears to be undervalued.
The current stock price of NT$25.05 is trading 19.1% below its estimated GF Value™ of NT$30.96.
GuruFocus considers Top Union Electronics to be Modestly Undervalued.
Key valuation signals for ROCO:6266:
ROE %: 13.45% (16% above median its 10-year median of 11.61)
GF Value™: NT$30.96 vs. price of NT$25.05 (19.1% below fair value)
Industry Position: 187.7% above the Semiconductors median (#259 of 1002)
No single metric tells the full story. See the ROCO:6266 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Top Union Electronics Corp is principally engaged in the design, manufacture, and technical support of electronic products and communication equipment, as well as providing surface mount technology (SMT) services, processing, and international trade business. The company operates in America, Taiwan, and China, of which it derives maximum revenue.
91GF Score
Get the complete analysis for ROCO:6266
ROE % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
ROCO:6266 has been successfully added to your 
